Over the weekend in Washington, DC, celebrities converged at the annual White House Correspondents ' Dinner, rubbing elbows with journalists and political types. What does one wear to hear President Obama make jokes about himself? Full-length gowns and bare shoulders.

There were some sharp-dressed men in attendence: Psy, Downton Abbey's Dan Stevens, Scandal's Tony Goldwyn, Daniel Dae Kim. Humina humina for those last two.

Black — always safe, elegant and classy — was one of the most popular colors for the ladies. Patricia Arquette's gown is a hot mess of a wreck — so busy, so tight, with sheer layers, sparkles AND ruffles — but Rebel Wilson looks fab if a little understated. (Maybe some large, dangling earrings would have been nice?)

Sharon Stone stalked the red carpet in full Maleficient drag. Witchy and wonderful.

Black with embellished necklines: Natalie Dormer, Olivia Munn.

One of the best gowns of the evening is this graphic floral strapless number, worn beautifully by Kate Walsh.

Deep violet was flattering on both Julia Louis-Dreyfuss and Downton Abbey's Michelle Dockery.

The bad news: Under the bright lights, the fabric of Connie Britton's gown looked cheap. The good news: The color brought out her eyes and her hair, as usual, is perfection. Meanwhile, although Sofia Vergara was spectacular in body-clinging sapphire, I want to yank out those earrings and give them to Rebel Wilson.

Springy bright green? A flawless choice for Smash star Megan Hilty. Katy Perry also looked great in a gown fit for a garden nymph.

On the wrong person, such a covered-up dress could be nun-like, but Kate Mara pulls it off, looking chic and French. Carol Alt went for a deep neckline in a gown that might be just a liiiiiiitle tight.

Parting shots: Rebel and Gabby. Former Marie Claire editor and current Cosmopolitan editor Joanna Coles with Nikolaj Coster-Waldau and Natalie Dormer. Basketball player Kevin Ware out and about after that horrifying injury. And finally, the Reverend Al Sharpton and Chris Matthews, showboating.